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vultr.com

Checked 2026-10-22 11:23 UTC · first added 2026-10-21
✗Problems found Score 62 of 100

Domain & DNS

warn

22 passed 2 warn 0 failed

Areas

iRegistration !Delegation iNameservers ✓SOA !DNSSEC iRecords

Problems

  • !
    Glue differs from the zone
    Delegation · The addresses at the parent (glue) differ from the addresses in the zone: ns1.vultr.com (glue 173.199.96.96, 2001:19f0:ccd::1, zone 173.199.96.96, 2001:19f0:ccd::1, 2001:19f0:ccc::1); ns2.vultr.com (glue 173.199.96.97, 2001:19f0:ccd::2, zone 173.199.96.97, 2001:19f0:ccc::2, 2001:19f0:ccd::2). Update the glue at your registrar.
    #8
  • !
    Not signed
    DNSSEC · The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Recent checks

!

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Mail

fail

25 passed 4 warn 2 failed

Areas

✗SPF ✓DMARC ✓DKIM !DNSSEC !MX ✗TLS iBIMI

Problems

  • ✗
    11 DNS lookups, over the limit of 10
    SPF · SPF record needs 11 DNS lookups (including nested includes), more than the limit of 10. Receivers will return a permerror; reduce includes or flatten the record.
    #2
  • ✗
    Policy not reachable
    TLS · The MTA-STS record exists but the policy could not be fetched, so senders ignore MTA-STS: https://mta-sts.vultr.com/.well-known/mta-sts.txt returned HTTP 403.
    #33
  • !
    Not enabled
    DNSSEC · DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.
    #8
  • !
    Hosts without IPv6
    MX · The following MX hosts could not be resolved to IPv6 addresses: usb-smtp-inbound-1.mimecast.com, usb-smtp-inbound-2.mimecast.com
    #11
  • !
    More than 5 MX records
    MX · Found 7 MX records, which is more than the recommended maximum of 5. Too many MX records may indicate a misconfiguration.
    #13
  • !
    Not configured
    TLS · MTA-STS or DANE is used without TLS-RPT, so you get no reports when senders fail to deliver because of TLS problems. Publish _smtp._tls TXT "v=TLSRPTv1; rua=mailto:...".
    #35

Recent checks

✗

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